I think most popular
centralized exchanges out there are newbie friendly. As soon as you know what "Assets", "Withdraw" and "Deposit" means, you should be fine. If you use non-KYC exchanges, make sure you choose a reputable one. Also do a quick "
X scam" (where
X is the exchange's name) search before registering to check if there are valid and active accusations against them.
If you want a
decentralized exchange that is newbie-friendly, Atomic DEX is your choice but they lack the volume.
One important thing is that you should make sure to toroughly read the Terms and Conditions before registering & depositing on a website any amount of coins. As soon as you accept the Terms and Conditions, if they have KYC and AML policies and you are not willing to share your personal information, expect to be asked for them at a certain point if and when they consider your account/transactions to be suspicious.
Just raising up this tip to avoid a future "COINBASE SCAMMED ME" thread on this forum. Keep your funds safe.